0102030405
COMPLETE ENGINE ： Engine BMW N55
PRODUCT INTRODUCTION
The 3.0-liter BMW N55B30 turbo engine was produced by the German concern from 2009 to 2018 and was installed on almost all major models of the company, including X-series crossovers. Alpina created several of its especially powerful power units based on this engine.
The engine was installed on:
BMW 1-Series E87 in 2010 – 2013; 1-Series F20 in 2012 – 2016;
BMW 2-Series F22 in 2013 – 2018;
BMW 3-Series E90 in 2010 – 2012; 3-Series F30 in 2012 – 2015;
BMW 4-Series F32 in 2013 – 2016;
BMW 5-Series F07 in 2009 – 2017; 5-Series F10 in 2010 – 2017;
BMW 6-Series F12 in 2011 – 2018;
BMW 7-Series F01 in 2012 – 2015;
BMW X3 F25 in 2010 – 2017;
BMW X4 F26 in 2014 – 2018;
BMW X5 E70 in 2010 – 2013; X5 F15 in 2013 – 2018;
BMW X6 E71 in 2010 – 2014; X6 F16 in 2014 – 2018.
Specifications
Production years |
2009-2018 |
Displacement, cc |
2979 |
Fuel system |
direct injection |
Power output, hp |
306 (N55B30M0) |
Torque output, Nm |
400 (N55B30M0) |
Cylinder block |
aluminum R6 |
Block head |
aluminum 24v |
Cylinder bore, mm |
84 |
Piston stroke, mm |
89.6 |
Compression ratio |
10.2 |
Features |
Valvetronic III |
Hydraulic lifters |
yes |
Timing drive |
chain |
Phase regulator |
double VANOS |
Turbocharging |
twin-scroll |
Recommended engine oil |
5W-30 |
Engine oil capacity, liter |
6.5 |
Fuel type |
petrol |
Euro standards |
EURO 5 |
Fuel consumption, L/100 km (for BMW 535i 2012) |
11.9 |
Engine lifespan, km |
~300 000 |
The following modifications of this power unit are produced in the basic factory configuration:
● OM 541.926 and OM 541.920 – an engine with a power of 313 hp, which is intended for completing trucks of relatively low carrying capacity and operating on short and medium flights;
● OM 541.922 – 354 hp engine to complete trucks operating in a wide variety of conditions;
OM 541.923 – 394 hp engine and the lowest fuel consumption among the 501 series power units;
● OM 541.921 and OM 541.925 – the engine with the highest power rating in the 501 series at 428 hp
One of the features of the OM501 series motors is the Telligent electronic system. It ensures optimal distribution and adaptation of injection timing and pressure to specific engine load parameters. At the same time, the system independently determines the parameters for each cylinder separately, which has a positive effect on fuel consumption and the amount of harmful emissions.
The technological solutions of the Mercedes OM 501LA engines, together with the Telligent system, ensure the comfort of driving the truck and an instant response to the pedal command.
Disadvantages of the N55B30 engine
This unit does not tolerate non-original oil and instantly cokes;
Hydraulic lifters, Vanos and Valvetronic systems are among the first to suffer from coke;
In these engines, the direct fuel injection system has become more reliable, but there are still a lot of failures;
Many owners change fuel injectors and injection pumps at a mileage of less than 100,000 km;
The main culprit for oil loss here is the crankcase ventilation valve.